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gocryptfs vs Koofr Vault: catalog facts
gocryptfs	Koofr Vault
Free Free and open source under the MIT licence.	Freemium Included in all Koofr plans, including the free plan.
macOS, Linux, Command line	Android, Web
Per-file encryption, so cloud sync and incremental backups only transfer what changed Independently audited in March 2017 with a published security design document	Client-side, zero-knowledge encryption Included with the free Koofr plan
macOS support is described by the project as beta quality No native Windows support; that is a separate reimplementation	Requires a Koofr account Only works with Koofr storage
Downloadable app	Downloadable app, Web application
Open source	Open source
License: MIT	License: MIT
No account needed	Account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.